package com.aotao.springboot.config;

import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class LoginHandlerInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //登陆成功之后，应该有用户的session

        Object username = request.getSession().getAttribute("username");
        if (username == null){
            System.out.println("开始拦截");
            request.setAttribute("msg","没有权限，请先登陆");
//            request.getRequestDispatcher("/admin/login.html").forward(request,response);
            return true;
        }else {
            return true;
        }
    }
}
